Meet the hexaflexagon. It's about to blow your mind. [URL:http://io9.com/5947852/this-is-a-hexaflexagon-its-about-to-blow-your-mind?fb_action_ids=10151057639002019&fb_action_types=og.likes&fb_source=other_multiline&action_object_map=%7B'10151057639002]